This document summarizes 4 research articles on topics related to physical medicine and rehabilitation (PMR). The first article finds that certain hematological parameters can predict abnormal CT scan findings and injury severity in pediatric patients with traumatic brain injury. The second article identifies sociodemographic and clinical factors associated with readmission within 30 days of hospitalization for traumatic brain injury. The third article estimates the minimal clinically important difference in Berg Balance Scale scores for patients with early subacute stroke who require walking assistance versus those who do not. The fourth article finds that early, intensive lower extremity rehabilitation shows preliminary efficacy in improving gross motor function in young children with perinatal stroke.